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10. An proton-antiproton pair is produced by a 1.95 x 10° MeV photon. What is the kinetic energy of the antiproton if the
kinetic energy of the proton is 49.20 MeV?
Use the following Joules-to-electron-Volts conversion leV = 1.602 x 10-19 j.
The rest mass of a proton is 1.67 x 10-" kg.
-27
X22 MeV

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